Manually activated,guarantees luminous intensity of 0.75 cd for more than 8 hours. Robust, waterproof, corrosionproof body.Easy to mount on the lifejacket. Corresponds to the new EC directive 2002/75/EC Approval Type - MED Directive96/98/EC as modified by MED Directive 2002/75/EC, Res. IMO MSC.81(70)